My period was late and I also had a copper coil which came out (but I was relying on it as my only method of contraception). I am now pg. For me I don't tend to miss a period unless I'm pg. How late are you?
Phew!! I too have a copper coil, missed a period, did a test... but it was pos. I had some scans to see if it was really true and it was. I think the coil worked in the end, but it shouldn't have happened at all! The family planning were quite surprised, firstly about the coil failing, and also about my age (I'm in my 40s)